Home / 3,393.96-5,091.32-928.68

Finding the Fourth Proportional to 3,393.96, 5,091.32 and 928.68

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Solution

The fourth proportional to 3,393.96, 5,091.32 and 928.68 is: 1,393.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.96 : 5,091.32 = 928.68 : x
  2. Step 2: Convert to fraction form
    3,393.96/5,091.32 = 928.68/x
  3. Step 3: Cross multiply
    3,393.96x = 5,091.32 × 928.68
  4. Step 4: Simplify right side
    3,393.96x = 4,728,207.06
  5. Step 5: Solve for x
    x = 4,728,207.06/3,393.96
  6. Step 6: Final answer
    x = 1,393.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.